Fire-alarm



S. GERON.

FIRE ALARM.

APPLlCATION FILED APR.17, 1920.

1,382, 1 85 Patente June 21, 1921.

'INVENTOR. Stanley eron ji 7 g ATTORNEY.

. sfl annnfennong-orroitKVrIirE, NEW YORK,

' riRE-ALARM.-

To. all whom, {tartar concern j a I Be it known thatI, STANL Y GERON, acit zenof Poland; residing at Yorkville,;county' have in-- of Oneida,and State of New York,

vented certain new and useful: Improvementsjin Fire- Alarms, of whichthefollow ing isa specification.

, This invention-relates to alarms, and more alarm operating; bythermostatic action and it has for an object to provide a novel andinexpensive form of thermostatic fire alarm whereby warning maybe givenin the event of a fire starting.

For further comprehension of the inven-' tion, and of the objects andadvantages thereof, reference will be had to the following descriptionand accompanying drawings, andto the appended claims in which thevarious novel features of the invention are more particularly set forth.

Figurel of the drawings is a side view of a thermostatic alarmconstructed according to the invention, v

Fig. 2 is a front view thereof.

Fig. 3 is a horitontal section on the line 3-3 of Fig. 2.

and is pressed firmly thereon by a cap In practical use my improvedalarm is mounted on the upper' end of a pipe such as 10, connected to asource of water supply, the device comprising briefly, a fusible memberclosing the upper end of head arranged abovethe pipe and carrying twoelectrical contacts adaptedto be closed by the water discharged from thepipe when the fusible member melts.

As here shown the fusible member comprises a ball 11 of wax or otherlike material which is seated on the upper end of the pipe 12 screweddown over the pipe, this caphaving a central nozzle orifice 13 in itstop.

The head above referred to is shown at 15 and is here of cylindricalshape and made of insulating material and is arranged in axial alinementwith the pipe 10. This head is preferably supported between the upperends of a pair of curved tubes 16 to which it is secured by anencircling band 17, these tubes being secured at their lower ends to thepipe just under the cap 12 by another band 18. p

This head is formed with a circular recess 20 extending upwardly fromits underside, inthe top of which is mounted an inverted Pup-Sh pecontact member 21 of 1 Specification or Letters Patent. Applicationmea-A riirz, 1920. Serial No.

1 copperl or other automaticfire.

particularly to a-fire orfun'nel-like lower the pipe and a Patented June21, 1921. 374,590. i it suitable material connected to a post 22- whichextends upwardly through the head and has the end of a;wire 23connected'thereto. Cooperating with the contact member 21 is a secondcontact meinher in the form of a short tube 24: extending upwardly intothe cup .21 but spaced therefrom at all points, this tube havinga flaredI end 24, and being inaxial alincment with the pipe 10 so as to re ceivethe jet of water discharged through the nozzle 13 when the fusible ball11 melts. This second contact member. is secured to the underside of thehead 15 by means of an integral ear 25 formed on one side of the flaredlower end thereof and clamped on the under side of the head by a screw26, this screw also serving to secure the end of a second wire 27 to thecar 25. These wires 23 and 27 preferably lead. downwardly through thetubes 16, the wire 23 leading through-the open upper end of the adjacenttube, while the other tube has an 28, in the side wall thereof toreceive the wire 27. These wires 23 and 27 lead, as will be understood,to an electric bell or other desired alarm.

Upon the occurrence of a fire in the vicin pera-' ity of the device therising of the tem ture will cause the ball 11 to melt and the Water tobe discharged through the nozzle 13 Having thus described my inventionwhat I claim as new and desire to secure by Let ters Patent of theUnited States is-.

1. A device of the class described comprising, a' fusible member adaptedto close the upper end of a pipe connected to a sourceof water supply, acap having a nozzle orifice adapted. to hold said fusible member inposition closing said pipe, a head adapted to be supported above saidcap, a pair of normally spaced contact members on said head,

adapted to close an alarm circuit when im-" pinged upon by the waterdischarged'from the said nozzle orifice.

2. In combination with a pipe'connected to a source of water supply, afusible element closing the end of said pipe, a cap secured on opening,indicated at be closed and the alarm contact 21, the stream ofinsulating material supported in alinement with the said pipe, and apair of fixed contact members carried by bythe stream of water nozzleorifice.

3. In combination with a pipe connected to a source of water supply, afusible element closing the end of said pipe, a cap secured on the pipeholding said element in position, said cap having a nozzle orifice, ahead of insulating material supported in alinement with the said pipe,and a pair of fixed contact members carried by, said head spaced fromone another and adapted to be bridged by the stream of Water flowingfrom said nozzle orifice, one of said contact members being of tube-likeformation with a fiarin end.

4. l n combination with a pipe connected to a source of water supply, afusible ball flowing from said said head spaced. from one another andadapted to be bridgedclosing the end of saidpipe, a capscrewcd upon theend of the pipe inclosing said ball and holding it in position on thepipe, said cap having a nozzle orifice, a cylindrical head of insulatingmaterial, a pair of tubes supported at their lower ends on said pipe andsupporting said head on then-upper ends, said head having a cylindricalrecess on its underside, an inverted cup-like contact member secured insaid recess, a tubular contact member proj'ecting'upwardly into said cupand spaced from the walls thereof, said tubular contact member having aflaring lower end, an ear on the lower end of said tubular contactmember whereby it is secured to the head, andla post extending upwardlythrough the head from the. first contact member to secure the latter 1nposition.

In testimony whereof I have afiixed signature.

STANLEY canon}

